Spark-arrester.



A f UNITED STATES PATENT OFFICE.

LARKIN LOVE CRUMP, OF WESTPOINT, MISSISSIPPI:

SPARK-ARRESTER.

SPECIFICATION forming part of Letters Patent No. 672,753, dated April 23, 1901.

7 Application filed July 1'7, 1900. $erial No. 23,963. (No model.)

To all whom it may concern:

Be it known that'l, LARKIN LOVE ORUMP, residing at Westpoint, in the county of Clay and State of Mississippi, have made certain new and useful Improvements in Spark-Arresters, of which the following is a specification.,

My invention is an improvement in sparkarresters especially designed for use on the stacks of locomotives, steam boats, stationary engines, or other locations where such devices are necessary or desirable; and the invention consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a vertical longitudinal section of the apparatus as in use. Fig. 2 is a detail perspective view of the inner shell or drum, and Fig. 3 is a detail perspective view of the spark discharging or separating wheel.

In the construction shown the casing A is adapted to fit over the inner shell or drum E, which rests upon the upper end of the stack B.

The casin g A is preferably formed with the cylindrical portion A and the inwardly-tapering portion A at the upper end of the part A.

In the casing A, preferably in the portion A thereof, as shown, I provide a bearing at i G for the journal of the separating-wheel D, presently described.

The inner shell or drum E tapers inwardly toward its upper end and terminates at its upper end immediately below the lower end of the separating-wheel. A flange E is provided at the lower end of the drum E, forming a base upon which rests the casing A. The shell E, as shown in Fig. 1, is spaced apart from the casing A, and the sparks, which are discharged between the shell E and the casing A, are discharged between the casing and drum and pass through outletopenings E near the base of the drum E, into fiues or tubes E which extend downwardly and may be arranged to discharge at any desired point.

The openings E, as shown in Fig. 1, are arranged diametrically opposite each other, and the sparks and cinders are directed to the outlet-openings E by suitable means, preferably the guide-plates F, as shown. As

best shown in Fig. 2, the guide-plates F extend on opposite sides of their respective openings E and diverge thence upwardly, terminating at their upper ends near the upper end of the drum E and in a line at right angles to a line drawn between the openings E. These guide-plates cross the space between the drum E and the casing A and form a downwardly-tapering chamber leading to the outlet-openings E to properly direct the cinders and sparks to the said openings, as will be understood from Fig. 2.

The wheel D is provided with the wings or blades D, which extend longitudinally in the direction of length of the wheel and are slightly inclined or spirally arranged, so the wheel will be turned by the action of the heat passing through the apparatus. The arrangement of the blades D is such that as the wheel is revolved they will strike the sparks or cinders and discharge them outwardly, as indicated by the arrows in Fig. 1, so they will be thrown out of the current of heat and will drop between the casing A and the drum E and be discharged, as before described.

In supporting the wheel D, I employ therefor a journal G, which is preferably a steampipe, perforated at G and G for the discharge of steam into the products of combus-' tion. This steam-pipe Gis held at its upper end in a bearing 0, which is in the form of a cross-bar or spider, as shown, and the upper end of the hub 01 of the wheel D is cupped at d to receive balls which relieve the friction incident to the upward thrust of the wheel. At its lower end the wheel D is supported on a flange plate or disk H, which is cupped on its upper side to receive the balls which reduce the friction at the lower end of the wheel D. By the described construction it will be seen that the wheel D is free to revolve on the journal G, its friction is reduced, and the journal is so formed as to secure a discharge of steam which will extinguish the sparks and cinders before reaching the outlet or discharge openings, as before described.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The combination in a spark-arrester of the casing the inner shell or drum fitted within the casing and convergingtoward its upper said steam-pipe between the openings thereof end and havingopeningsin its lower end and and above the inner shell or drum substan- IO discharge-fines communicating therewith,the tially as set forth.

guides between the drum and casing and con- LARKIN LOVE ORUMP 5 verging toward their respective outlet-openings, the steaui-pipe within the drum and cas- Witnesses:

ing and provided with steam-discharge open- S. S. MORROW,

ings,and the separating-wheel journaled upon G. D. HURST. 

